A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6610-00-596-9883
NSN 6610-01-406-4985
NSN 6620-00-613-3023
NSN 6105-00-297-3762
NSN 5925-01-646-7103
NSN 5895-01-107-4586
NSN 6320-00-216-8779
NSN 5996-00-778-4735
NSN 5920-00-409-3650
NSN 5985-00-409-5604
NSN 5960-01-449-1310
NSN 6685-01-273-7874